13331201331 has 32 divisors (see below), whose sum is σ = 20576263680. Its totient is φ = 7519843584.

The previous prime is 13331201267. The next prime is 13331201341. The reversal of 13331201331 is 13310213331.

It is not a de Polignac number, because 13331201331 - 2⁶ = 13331201267 is a prime.

It is a super-2 number, since 2×13331201331² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 13331201298 and 13331201307.

It is not an unprimeable number, because it can be changed into a prime (13331201341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1196221 + ... + 1207313.

It is an arithmetic number, because the mean of its divisors is an integer number (643008240).

Almost surely, 2^13331201331 is an apocalyptic number.

13331201331 is a deficient number, since it is larger than the sum of its proper divisors (7245062349).

13331201331 is a wasteful number, since it uses less digits than its factorization.

13331201331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11835.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 13331201331 its reverse (13310213331), we get a palindrome (26641414662).

The spelling of 13331201331 in words is "thirteen billion, three hundred thirty-one million, two hundred one thousand, three hundred thirty-one".